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+/*
+ Copyright (C) 2026 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ libdcp is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include "extension_metadata.h"
+#include "warnings.h"
+LIBDCP_DISABLE_WARNINGS
+#include <libxml++/libxml++.h>
+LIBDCP_ENABLE_WARNINGS
+
+
+using std::string;
+using std::vector;
+using namespace dcp;
+
+
+ExtensionMetadata::ExtensionMetadata(string scope_, string name_, vector<ExtensionMetadata::Property> properties_)
+ : scope(std::move(scope_))
+ , name(std::move(name_))
+ , properties(std::move(properties_))
+{
+
+}
+
+
+ExtensionMetadata::ExtensionMetadata(cxml::ConstNodePtr node)
+ : scope(node->string_attribute("scope"))
+ , name(node->optional_string_child("Name").get_value_or(""))
+{
+ if (auto list = node->optional_node_child("PropertyList")) {
+ for (auto property: list->node_children("Property")) {
+ properties.push_back(Property(property));
+ }
+ }
+}
+
+
+void
+ExtensionMetadata::as_xml(xmlpp::Element* parent) const
+{
+ auto extension = cxml::add_child(parent, "ExtensionMetadata", string("meta"));
+ extension->set_attribute("scope", scope);
+ cxml::add_child(extension, "Name", string("meta"))->add_child_text(name);
+ auto property_list = cxml::add_child(extension, "PropertyList", string("meta"));
+ for (auto const& property: properties) {
+ property.as_xml(cxml::add_child(property_list, "Property", string("meta")));
+ }
+}
+
+
+ExtensionMetadata::Property::Property(cxml::ConstNodePtr node)
+ : name(node->optional_string_child("Name").get_value_or(""))
+ , value(node->optional_string_child("Value").get_value_or(""))
+{
+
+}
+
+
+void
+ExtensionMetadata::Property::as_xml(xmlpp::Element* parent) const
+{
+ cxml::add_child(parent, "Name", string("meta"))->add_child_text(name);
+ cxml::add_child(parent, "Value", string("meta"))->add_child_text(value);
+}
+
+